* {
    margin: 0;
    box-sizing: border-box;
    padding: 0;
    font-size: 1.2rem;
}

body {
    background-color: #f4f4f4;
    min-width: 320px;
}

ul {
    list-style: none;
}

input {
    cursor: pointer;
}

a {
    text-decoration: none;
    cursor: pointer;
}

a:visited {
    color: #000;
}

header {
    text-align: center;
    background-color: #0561bc;
    height: 160px;
    line-height: 160px;
    color: #fff;
}

.clearfix::after{
    content: "";
    display: block;
    clear: both;
}

